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Can't access C6472 TSIP registers

Greg Reuter
Intellectual 535 points
Other Parts Discussed in Thread: TMS320C6472

All TSIP register locations appear to read 0 for both HPI and JTAG.  For example, the TSIP PID (address 0x02500000) reads 0x00000000 (0x00600101 expected).

If it matters, the PLL1 PID and HPI PID read as expected, but the SRIO PID (address 0x02D00000) reads 0.

  • 0
    Intellectual 535 points

    I can see the TSIP PID register now !

    SPRUEG3B "TMS320C6472/TMS320TCI6486 DSP Power/Sleep Controller" described TSIP0 as being in a clock domain that defaults to off following a power-on-reset.  If I write 0x103 to MDTCL9 (address 0x2ae0a24) and then 1 to PTCMD (address 0x2ae0120), I can read 0x600100 at address 0x2500000.  SPRUEG3B says it should be 0x600101, but I'm guessing maybe it indicates a revision difference.